| 旋转掷铁饼技术中肩、髋、铁饼及人体重心的时空特征研究 |
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| 引用本文： | 刘建国,崔冬雪,刘卫彬,赵其林,王金福.旋转掷铁饼技术中肩、髋、铁饼及人体重心的时空特征研究[J].中国体育科技,2004,40(4):20-23. |
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| 作者姓名： | 刘建国 崔冬雪 刘卫彬 赵其林 王金福 |
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| 作者单位： | 河北师范大学,体育学院,河北,石家庄,050016 |
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| 基金项目： | 河北省体育局研究攻关项目 |
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| 摘 要： | 运用近景动态立体摄像的方法 ,对我国优秀女子运动员完成旋转掷铁饼技术时的肩、髋、铁饼及人体重心的时空特征进行了三维分析。表明不同时空的肩、髋、铁饼及人体重心处于不同的位置 ,是与铁饼技术要求紧密相关的 ,破坏了各个时空中肩、髋、铁饼及人体重心的时空结构势必会影响掷铁饼技术、速度和最后的运动成绩 ;铁饼速度与人体重心速度的变化反映了旋转掷铁饼技术的节奏特征
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| 关 键 词： | 铁饼 技术 女子 优秀运动员 三维 运动学 分析 时空 人体重心 |
| 文章编号： | 1002-9826(2004)04-0020-04 |
| 修稿时间： | 2003年6月4日 |
Research on Space-time Characteristic of Shoulder,Hip,Discus and Center of Gravity of Thrower in Rotational Discus Throwing Technique |
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| LIU Jian-guo,CUI Dong-xue,LIU Wei-bing,ZHAO Qi-lin,WANG Jing-fuPhysical Education College of Hebei Normal University,Shijiazhuang ,China..Research on Space-time Characteristic of Shoulder,Hip,Discus and Center of Gravity of Thrower in Rotational Discus Throwing Technique[J].China Sport Science and Technology,2004,40(4):20-23. |
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| Authors: | LIU Jian-guo CUI Dong-xue LIU Wei-bing ZHAO Qi-lin WANG Jing-fuPhysical Education College of Hebei Normal University Shijiazhuang China |
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| Institution: | LIU Jian-guo~1,CUI Dong-xue~1,LIU Wei-bing~1,ZHAO Qi-lin~1,WANG Jing-fu~2Physical Education College of Hebei Normal University,Shijiazhuang 050016,China. |
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| Abstract: | By using the method of close shot dynamic photograph,this paper makes three-dimensional analysis on space-time of shoulder,hip,discus and center of gravity of our elite female discus thrower in rotational discus throwing technique.The result shows that the position of shoulder,hip,discus and center of gravity of thrower in every time space are at different position,there are closely related to throwing discus technique.If space-time characteristics are broken,it bound to affect discuss throwing technique,velocity and result of thrower.The velocity variation of discuss and center of gravity shows that rhythm characteristics of rotating throwing discus technique. |
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| Keywords: | discus technique female elite thrower three-dimensional kinematics analysis space-time center of gravity |
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